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  • Title: [Cutaneous tuberculosis: anatomoclinical features and clinical course (26 cases)].
    Author: Fenniche S, Ben Jennet S, Marrak H, Khayat O, Zghal M, Ben Ayed M, Mokhtar I.
    Journal: Ann Dermatol Venereol; 2003 Nov; 130(11):1021-4. PubMed ID: 14724536.
    Abstract:
    INTRODUCTION: Despite prevention programs, tuberculosis is still progressing endemically in developing countries. The prevalence of cutaneous tuberculosis is estimated as 2.1 p. 100 and represents a rare localization among the extra-pulmonary forms. In order to study the epidemiology, the most frequent anatomoclinical forms and the progressive features of cutaneous tuberculosis, we conducted a study in the area of Tunis over a 20-year period. PATIENTS AND METHODS: All cases of cutaneous tuberculosis observed between 1981 and 2000 in the dermatology department of the Habib Thameur hospital were included in a retrospective study. Diagnosis of cutaneous tuberculosis was challenging and required the correlation of clinical, biological and progressive features. RESULTS: Twenty-six patients were observed in the study. There were 12 men and 14 women with a mean age of 30.4 years (range: 6-74) and 20 p. 100 of infantile cases. Of the various patterns of cutaneous tuberculosis seen, 11 (42 p. 100) had lupus tuberculosis, 10 (38 p. 100) had scrofuloderma, 4 (15 p. 100) had tuberculosis verrucosa cutis and 1 child had a perianal tubercular ulcer. The Mantoux test was positive in 20/24 patients. Histological tuberculoid granuloma was seen in 25 cases (96 p. 100) associated with caseating necrosis in 10 cases (38 p. 100). All patients were treated successfully with triple or quadruple anti-tubercular drugs for 6 to 10 months. One patient exhibited a squamous cell carcinoma on a lupus tuberculosis scar four years later. DISCUSSION: The progression of cutaneous tuberculosis remains stable, ranging from 1.4 cases/year between 1981 and 1990 to 1.2 cases/year between 1991 and 2000. In our study, females were slightly more affected than men with a M/F sex ration of 0.86. Before 1984, scrofuloderma was the most frequent form among the cutaneous tuberculoses. Now the frequency of lupus tuberculosis has reached that of scrofuloderma, demonstrating the increase in the incidence of clinical pattern of cutaneous tuberculosis with strong immunity probably related to the improvement in health conditions and generalization of vaccination programs.
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